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ubuntucveUbuntu.comUB:CVE-2021-3618
HistoryMar 23, 2022 - 12:00 a.m.

CVE-2021-3618

2022-03-2300:00:00
ubuntu.com
ubuntu.com
139

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

0.001 Low

EPSS

Percentile

46.9%

JSON

ALPACA is an application layer protocol content confusion attack,
exploiting TLS servers implementing different protocols but using
compatible certificates, such as multi-domain or wildcard certificates. A
MiTM attacker having access to victim’s traffic at the TCP/IP layer can
redirect traffic from one subdomain to another, resulting in a valid TLS
session. This breaks the authentication of TLS and cross-protocol attacks
may be possible where the behavior of one protocol service may compromise
the other at the application layer.

Bugs

Notes

Author Note
mdeslaur the mail proxy mechanisms aren’t included in nginx.conf by default
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchnginx< 1.14.0-0ubuntu1.10UNKNOWN
ubuntu20.04noarchnginx< 1.18.0-0ubuntu1.3UNKNOWN
ubuntu21.10noarchnginx< 1.18.0-6ubuntu11.1UNKNOWN
ubuntu22.04noarchnginx< 1.18.0-6ubuntu14.1UNKNOWN
ubuntu14.04noarchnginx< anyUNKNOWN
ubuntu16.04noarchnginx< 1.10.3-0ubuntu0.16.04.5+esm3UNKNOWN
ubuntu18.04noarchsendmail< anyUNKNOWN
ubuntu20.04noarchsendmail< anyUNKNOWN
ubuntu22.04noarchsendmail< anyUNKNOWN
ubuntu14.04noarchsendmail< anyUNKNOWN
Rows per page:
1-10 of 151

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fedora
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[SECURITY] Fedora 33 Update: nginx-1.20.1-3.fc33
2021-07-04 01:09:18
[SECURITY] Fedora 34 Update: vsftpd-3.0.3-43.fc34
2021-10-21 16:53:35
[SECURITY] Fedora 34 Update: nginx-1.20.1-3.fc34
2021-07-04 01:08:03
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Updated nginx/vsftpd packages fix security vulnerability
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Amazon Linux 2023 : vsftpd (ALAS2023-2023-019)
2023-03-21 00:00:00
CentOS 9 : nginx-1.20.1-10.el9
2024-02-29 00:00:00
SUSE SLES15 Security Update : vsftpd (SUSE-SU-2022:3457-1)
2022-09-29 00:00:00
redos
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ROS-20220125-08
2022-01-25 00:00:00
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ROS-20220112-03
2022-01-12 00:00:00
amazon
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Medium: vsftpd
2024-01-19 01:51:00
osv
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BIT-nginx-2021-3618
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vsftpd vulnerability
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Mageia: Security Advisory (MGASA-2021-0540)
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2022-09-29 00:00:00
SUSE: Security Advisory (SUSE-SU-2022:4265-1)
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CVE-2021-3618
2022-03-23 20:15:09
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Security Bulletin: A security vulnerability in NGINX ffects IBM Cloud Automation Manager
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cbl_mariner
cbl_mariner
CVE-2021-3618 affecting package nginx 1.20.1-2
2022-05-12 02:16:38
CVE-2021-3618 affecting package vsftpd for versions less than 3.0.5-1
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CVE-2021-3618 affecting package sendmail 8.15.2-46
2024-06-26 15:36:28
veracode
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Access Restriction Bypass
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CVE-2021-3618
2022-03-23 20:15:09
ubuntu
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2023-09-18 00:00:00
nginx vulnerabilities
2022-04-12 00:00:00
nginx vulnerability
2022-04-28 00:00:00
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2022-03-23 00:00:00
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Security fix for the ALT Linux 10 package nginx version 1.22.0-alt1
2022-07-14 00:00:00
Security fix for the ALT Linux 9 package nginx version 1.22.0-alt1
2022-07-15 00:00:00
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Advisory ROSA-SA-2023-2269
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K000132639 : ALPACA: TLS vulnerability CVE-2021-3618
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Security update for vsftpd (important)
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2022-04-11 16:46:59
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Design/Logic Flaw
2022-03-23 20:15:00
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2022-03-23 20:15:09
photon
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Important Photon OS Security Update - PHSA-2022-0172
2022-04-15 00:00:00
Important Photon OS Security Update - PHSA-2022-0381
2022-04-12 00:00:00
Critical Photon OS Security Update - PHSA-2022-0173
2022-04-21 00:00:00
debian
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[SECURITY] [DLA 3203-1] nginx security update
2022-11-22 23:40:00

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

0.001 Low

EPSS

Percentile

46.9%

JSON
Related for UB:CVE-2021-3618
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